I went and checked this out yesterday,good prices on some pipes and whatnot, but overall if you're expecting something extra magical you aren't going to find it here. That being said, there was some cool stuff going on. A guy blowing glass pipes, all kinds of compassion club info, some insurance agents had an oxygen bar set up, etc. I'd say it was still worth the half hour drive, but not what it could be. If you're not going to do any of the seminars (which I didn't) then you can see everything there is to see in about an hour.
If anyone has been to Gibraltar Trade Center it's kind of like that, only all weed stuff.